Never ever ever ever install a demo version on a production box
Or install the software without the license key. Every single time I've given in and done this the demo expired before the license key arrived. Delay the roll out, if it's an opening escalate it to the business sponsor, by pass procurement rules, borrow a company credit card, use personal relationships with the vendor. If all else fails use your credit card. This is the project managers responsibility I have never asked a techie to do any of that.